The Rider on Pegasus emblem belonged to the UK 1st and 6th Airborne during WW2 later to become 16 Air Support Brigade.The only time I can think of where that insignia might end up on a M37 would be during the Korean war unless the truck was being used as a prop in a WW2 movie/program as it's almost the same as a WC Dodge of that period.

Cheers olds, as far as we have found out up to now , it was a Korean war issue truck , and we believe that it has been used as a movie truck as it was shown at events in the early 70,s I green livery